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The yields of oats used for making hay and the content of some heavy metals (Cd, Zn) in the aboveground biomass were studied in a three-year pot experiment. The experiment had the following variants: Variant 1 - control (without dressing); Variant 2 - farmyard manure; Variant 3 - compost from the city of Cracow (consisting of wood chips, grass, leaves, vegetable residues, and tobacco) and Variant...
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